原案|げんあんgen'an[0]heiban (flat)

1. nounoriginal plan; original bill; original motion; draft
   彼かれは原案げんあんに固執こしつした。↗

   He adhered to the original plan.

• Synonym草案そうあんWrittenWritten register. A document draft awaiting others' deliberation — bills, charters, speeches. 「原案」 stresses its role as the base plan for later discussion.
• Synonym素案そあんWrittenWritten register. A rough, preliminary plan at an earlier stage than 「原案」, before it is shaped into a full proposal.
• Related草稿そうこうNeutralNeutral. A draft of a text or speech, not yet finalized or released; handwritten or typed. It stresses unfinished writing; 「原案」 stresses being the base others revise.
• Related文案ぶんあんWrittenWritten register. A draft of the wording — official papers, ad copy, speeches; the focus is the text itself, while 「原案」 stresses being the starting proposal.
• Related原稿げんこうNeutralNeutral. A manuscript of a written work, as in 「原稿用紙」; focuses on the manuscript copy, not the plan.
• Related起草きそうWrittenWritten register. The act of drafting, as in 「法案を起草」; 「原案」 is the plan itself, not the action.
• Related下書きしたがきNeutralNeutral, everyday word. A rough draft made before the fair copy; the focus is on coming before the clean version, while 「原案」 is the base that revisions start from.
• Related案文あんぶんWrittenWritten register, official-document flavor. A draft text centered on clauses and wording; 「原案」 is the plan as a whole.
• Related起稿きこうWrittenWritten register. Starting to write a draft, as in 「起稿する」; stresses the moment of putting pen to paper.
• Antonym修正案しゅうせいあんWrittenWritten register, antonym. A revised proposal, standing opposite the 「原案」.
• Antonym改定案WrittenWritten register, antonym. A proposal for revision, opposed to the original plan.
• Antonym変更案WrittenWritten register, antonym. A proposal for changes, opposed to the original plan.

Use 「原案」 for the plan that serves as the basis for later discussion and revision, as in 「原案通り可決」. Use 「草案」 for a document draft awaiting review, 「素案」 for a rough early plan, 「原稿」 for a work's manuscript, 「起草」 for the act of drafting, and 「修正案」 for a revised proposal.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 何なんかの元もととなる案あん。